Alert archive / Virginia / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 112, NWS Blacksburg, VA

June 4, 2009Floyd County, Franklin County, Roanoke County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jun 4, 2009, 12:39 PM EDT for Floyd County, Franklin County, Roanoke County, Virginia. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 4, 2009, 12:39 PM EDT (16:39 UTC)
Expired: Jun 4, 2009, 1:45 PM EDT
In force: 66 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon

Counties Floyd County, VA, Franklin County, VA, Roanoke County, VA

The radar

The Roanoke radar (KFCX), 16 km from the middle of the area, began a volume at 16:41 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 4.7 hours before the alert went out and 56 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 123 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 1008 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 88 m²/s²
0-3 km storm-relative helicity: 69 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Blacksburg, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 4, 9:47 AM EDT, 2 hours 52 minutes earlier.

Area forecast discussion, Jun 4, 9:47 AM EDT, 2 hours 52 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Jun 4, 5:22 AM EDT, 7 hours 17 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BLACKSBURG VA
522 AM EDT THU JUN 4 2009

NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>045-050930-
ASHE-ALLEGHANY NC-SURRY-STOKES-ROCKINGHAM-CASWELL-WATAUGA-WILKES-
YADKIN-TAZEWELL-SMYTH-BLAND-GILES-WYTHE-PULASKI-MONTGOMERY-GRAYSON-
CARROLL-FLOYD-CRAIG-ALLEGHANY VA-BATH-ROANOKE-BOTETOURT-ROCKBRIDGE-
PATRICK-FRANKLIN-BEDFORD-AMHERST-HENRY-PITTSYLVANIA-CAMPBELL-
APPOMATTOX-BUCKINGHAM-HALIFAX-CHARLOTTE-MERCER-SUMMERS-MONROE-
GREENBRIER-
522 AM EDT THU JUN 4 2009

...FLOOD WATCH IN EFFECT THROUGH FRIDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL NORTH
CAROLINA...NORTHWEST NORTH CAROLINA...CENTRAL VIRGINIA...SOUTH
CENTRAL VIRGINIA...SOUTHWEST VIRGINIA...WEST CENTRAL VIRGINIA AND
SOUTHEAST WEST VIRGINIA.

.DAY ONE...TODAY AND TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   FLOOD WATCH.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

   FLOOD WATCH.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, Jun 4, 10:08 AM EDT, 2 hours 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1008 AM EDT THU JUN 04 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0241 PM     TSTM WND DMG     2 W DOBSON              36.39N 80.76W
06/03/2009                   SURRY              NC   DEPT OF HIGHWAYS

            TWO TREES DOWN ON W.R. GILLESBY ROAD

&&

SK

Local storm report, Jun 4, 10:33 AM EDT, 2 hours 6 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1033 AM EDT THU JUN 04 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0530 PM     TSTM WND DMG     ROCKBRIDGE BATHS        37.90N 79.42W
06/03/2009                   ROCKBRIDGE         VA   DEPT OF HIGHWAYS

            LARGE TREE DOWN.

&&

SK

Local storm report, Jun 4, 10:34 AM EDT, 2 hours 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1034 AM EDT THU JUN 04 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0150 PM     HAIL             1 W MEADOWS OF DAN      36.73N 80.43W
06/03/2009  M1.00 INCH       PATRICK            VA   POST OFFICE

&&

MARCC

Local storm report, Jun 4, 11:03 AM EDT, 1 hour 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1103 AM EDT THU JUN 04 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0418 PM     HAIL             1 W BROWNSBURG          37.93N 79.34W
06/03/2009  E0.75 INCH       ROCKBRIDGE         VA   PUBLIC

            REPORTED BY PUBLIC ON HAYS CREEK ROAD JUST WEST OF
            BROWNSBURG. ALSO A LARGE LIMB DOWN, BUT MAY HAVE BEEN DUE
            TO LIGHTNING...THEY WERE NOT HOME WHEN IT CAME DOWN.

&&

SK

Special weather statement, Jun 4, 11:42 AM EDT, 57 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1142 AM EDT THU JUN 4 2009

VAZ013-014-016-017-041645-
CARROLL VA-FLOYD VA-MONTGOMERY VA-PULASKI VA-
1142 AM EDT THU JUN 4 2009

...A THUNDERSTORM WITH HEAVY RAIN WILL AFFECT CARROLL...FLOYD...MONTGOMERY
AND PULASKI COUNTIES...

AT 1141 AM EDT...A THUNDERSTORM WITH HEAVY RAIN WAS LOCATED 7 MILES
SOUTHWEST OF INDIAN VALLEY...MOVING NORTHEAST AT 25 MPH.

WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS SHOWER. VERY HEAVY RAIN
WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO POND ON ROADS
AND QUICKLY FILL ROADSIDE DITCHES AND SMALL STREAMS.

THIS SHOWER WILL BE NEAR INDIAN VALLEY...AND WILLIS AROUND 1155 AM...
COPPER VALLEY...ALUM RIDGE...AND GRAYSONTOWN AROUND 1205 PM...
CHILDRESS AROUND 1215 PM...PILOT AROUND 1225 PM...CHRISTIANSBURG
AROUND 1230 PM AND TERRYS FORK AROUND 1235 PM.

LISTEN TO NOAA WEATHER RADIO OR YOUR FAVORITE MEDIA OUTLET FOR LATER
UPDATES OR POSSIBLE WARNINGS.

LAT...LON 3686 8080 3687 8078 3689 8073 3691 8075
      3721 8035 3703 8014 3673 8067

EXPERIMENTAL

KK

Local storm report, Jun 4, 12:10 PM EDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1210 PM EDT THU JUN 04 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0130 PM     HAIL             5 NNE FANCY GAP         36.73N 80.68W
06/03/2009  E0.75 INCH       CARROLL            VA   PUBLIC

&&

MARCC

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 4, 4:48 AM EDT	Flood Watch	RNK	Alleghany, Amherst, Appomattox, Bath, Bedford, Bland and 31 more	31 hr
Jun 4, 11:42 AM EDT	Special Weather Statement	RNK	Floyd, Montgomery	63 min
Jun 4, 1:43 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Franklin, Pittsylvania	50 min
Jun 4, 1:45 PM EDT	Severe Thunderstorm Warning	RNK	Pulaski, Wythe	47 min
Jun 4, 1:51 PM EDT	Tornado Warning	RNK	Bedford, Franklin, Pittsylvania	54 min
Jun 4, 2:10 PM EDT	Special Weather Statement	RNK	Halifax	65 min
Jun 4, 2:18 PM EDT	Tornado Warning	RNK	Franklin, Pittsylvania	57 min
Jun 4, 2:24 PM EDT	Flash Flood Warning	RNK	Grayson, Smyth	4 hr
Jun 4, 2:43 PM EDT	Flash Flood Warning	RNK	Wythe	4 hr
Jun 4, 2:44 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Pittsylvania	50 min
Jun 4, 2:54 PM EDT	Special Weather Statement	RNK	City of Danville	66 min
Jun 4, 2:56 PM EDT	Tornado Warning	RNK	Pittsylvania	49 min
Jun 4, 3:00 PM EDT	Flash Flood Warning	RNK	Pittsylvania, City of Danville	6 hr
Jun 4, 3:04 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania, City of Danville	56 min
Jun 4, 3:15 PM EDT	Special Weather Statement	RNK	Bland, Giles, Grayson, Montgomery, Pulaski, Smyth and 2 more	60 min
Jun 4, 3:17 PM EDT	Flash Flood Warning	RNK	Pulaski	6 hr
Jun 4, 3:17 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte	29 min
Jun 4, 3:50 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd, Montgomery, Pulaski	39 min
Jun 4, 3:52 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Giles	32 min
Jun 4, 4:07 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Giles, Pulaski	26 min
Jun 4, 4:11 PM EDT	Flash Flood Warning	RNK	Halifax	6 hr
Jun 4, 4:23 PM EDT	Special Weather Statement	RNK	Smyth, Tazewell	67 min
Jun 4, 4:26 PM EDT	Special Weather Statement	RNK	Henry, City of Martinsville	64 min
Jun 4, 5:03 PM EDT	Flash Flood Warning	RNK	Tazewell	5 hr
Jun 4, 5:06 PM EDT	Flash Flood Warning	RNK	Pittsylvania	6 hr
Jun 4, 7:54 PM EDT	Flash Flood Warning	RNK	Bland, Wythe	6 hr
Jun 3, 10:15 PM EDT	Special Weather Statement	RNK	Wilkes, Yadkin	60 min
Jun 4, 12:02 AM EDT	Areal Flood Warning	RNK	Wilkes	5 hr

Nearby

Severe Thunderstorm Warnings in Virginia, 2009 Every severe thunderstorm warning in 2009

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.